I totally agree that they are different visually. Unfortunately they can be
tough to see and when you do see them it might be for a very short time
(especially in the winter) So we may have to rely on voice, and “eBird”
used the word subtle on some of the voice ID. Learning the difference in
the vocalization might be important if we are birding in the Great Plains.
I was intrigued by what the ranges might look like in the non-breeding
season so on eBird I went to “Cornell Lab Birds of the World”. The
picture in Texas looks interesting with a large mixing zone and
opportunities to advance the science.
Even in AR: central-west, nw and the AR river valley show as in migration
but not wintering for Eastern Marsh Wren. Personally, I’ll be trying to get
good looks and voice recognition during the winter because wintering range
probably needs to shift north. It might be a fun citizen science exercise!
, Leif
